LC60i rears to replace RC80i's?

chzcake
chzcake Posts: 1
edited March 2008 in Speakers
Power: 7.1 Onkyo 905
Mains: LC265i
Center: LSiC
Mid: LC80i
Sub: PSW1000
Rear: existing RC80i

Considering LC60i's to replace RC80i

Any comments on whether this is a worthwhile upgrade?
Or will the difference be marginal?